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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 4.3L >> Repair Instructions >> Off-Vehicle Repair Instructions >> Intake Manifold Disassemble (LU3)

Intake Manifold Disassemble (LU3)

  1. Remove the nuts, the studs, and the accelerator control cable bracket.
    Fig 1: Removing Nuts, Studs and Accelerator Control Cable Bracket
    G01643993Courtesy of GENERAL MOTORS CORP.
  2. Remove the throttle body attaching studs.
    Fig 2: Removing Throttle Body Attaching Studs
    G01643994Courtesy of GENERAL MOTORS CORP.
  3. Remove the throttle body.
  4. Remove the throttle body to upper intake manifold gasket.
    Fig 3: Removing Throttle Body
    G01643995Courtesy of GENERAL MOTORS CORP.
  5. Discard the throttle body to upper intake manifold gasket.
  6. Remove the water outlet studs.
  7. Remove the water outlet (1 or 2).
    Fig 4: Removing Engine Coolant Thermostat
    G01643996Courtesy of GENERAL MOTORS CORP.
  8. Remove the engine coolant thermostat.
  9. Remove the engine coolant temperature (ECT) sensor plug (1) or the ECT sensor (2) from the front of the lower intake manifold, if equipped.
    Fig 5: Removing Engine Coolant Temperature Sensor
    G01643997Courtesy of GENERAL MOTORS CORP.
  10. Remove the studs and the ignition coil.
    Fig 6: Removing Studs And Ignition Coil
    G01643998Courtesy of GENERAL MOTORS CORP.
  11. Remove the manifold absolute pressure (MAP) sensor.
  12. Remove the MAP sensor seal from the MAP sensor.
    Fig 7: Removing MAP Sensor Seal
    G01643999Courtesy of GENERAL MOTORS CORP.
  13. Discard the MAP sensor seal.
  14. Remove the fuel pipe bolt (4).
  15. Remove the fuel pipe retainer nuts (1).
  16. Remove the fuel pipe retainer (2).
  17. Remove the fuel pipe (3).
  18. Remove and discard the fuel seal retainers (5).
  19. Remove the discard the fuel seals (6), yellow O-rings.
  20. Remove and discard the spacer rings (7), flat washers.
  21. Remove and discard the fuel seals (8), black O-rings.
    Fig 8: Removing And Discarding Fuel Seals
    G01644000Courtesy of GENERAL MOTORS CORP.
  22. Remove the studs and the evaporative emission (EVAP) canister purge solenoid valve.
    Fig 9: Removing Nut And Engine Wiring Harness Bracket
    G01644001Courtesy of GENERAL MOTORS CORP.
  23. Remove the nut and the engine wiring harness bracket.
  24. Remove the upper intake manifold attaching studs.
  25. Remove the upper intake manifold.
    Fig 10: Removing Upper Intake Manifold
    G01644002Courtesy of GENERAL MOTORS CORP.
  26. Remove the upper intake manifold. to lower intake manifold gasket.
  27. Discard the upper intake manifold to lower intake manifold gasket.
  28. Remove the fuel meter body seal and discard.
  29. Remove the 6 injectors from the lower intake manifold bores.
  30. Remove the fuel meter body.
    Fig 11: Removing Bolt And Fuel Meter Body Bracket
    G01644003Courtesy of GENERAL MOTORS CORP.
  31. Remove the bolt and the fuel meter body bracket.
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